Three new saponins,3 O {〔β D glucopyranosyl (16) β D glucopyranosyl(12)〕 〔β D glucopyranosyl(13)〕 α L arabinopyranosyl}oleanolic acid 28 O β D glucopyranosyl (16) β D glucopyranoside(congmunoside Ⅻ,1),3 O {〔β D glucopyranosyl (16) β D glucopyranosyl(12)〕 〔β D glucopyranosyl(13) β D glucopyranosyl(13)〕 α L arabinopyranosyl}oleanolic acid 28 O β D glucopyranosyl (16) β D glucopyranoside(congmunoside ,2),Oleanolic acid 3 O {〔β D xylopyranosyl (12)〕 〔β D galactopyranosyl (13)〕 (β D glucuronopyranoside 6′ O butyl ester)} 28 O β D glucopyranoside(congmunoside ,3),were isolated from the root bark of Aralia elata (Miq.)Seem.Their structures were determined on the basis of chemical and spectroscopy methods.
A new compound,3 hydroxy 1(10),3 guaiadiene 12,6 olide 2 one,was isolated from Ixeris sonchifolia (Bge.)Hance.This compound was identified by 1H NMR, 13 C NMR, 1H 1HCOSY,HMQC,HMBC,EI MS.
A new flavonoid,named luteolin 7 O β D glucuronide ethyl ester,was isolated from the whole plant of Ixeris sonchifolia (Bge.) Hance.Its structure was deduced and confirmed by the chemical method and spectroscopic analysis ( 1H NMR, 13 C NMR,HMQC,HMBC).
